Propeller for ship, and assembling method and disassembling method therefor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 9, 2018
Issued Date -
N/A
app pub date -
May 16, 2013
filing date -
Dec 3, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Disclosed are a propulsion system for a ship, a method of assembling the same, and a method of disassembling the same. The propulsion system for the ship includes: a rear propeller fixed to a rotary shaft; a front propeller that is rotatably supported on the rotary shaft in front of the rear propeller; a contra-rotating device that is mounted in an installation space at a rear end of a hull so as to reverse the rotation of the rotary shaft and transmit the reversed rotation to the front propeller; a propeller connecting member that connects the contra-rotating device and the front propeller to transmit a rotational force; and a thrust supporting device that is provided between the contra-rotating device and the propeller connection member to support thrust of the front propeller.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2013 Application Filing Year
- B63H Class
- 287 Applications Filed
- 266 Patents Issued To-Date
- 92.69 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- B63H Class
- 0 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 9, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 9, 2029 |
